Closure strip



FIG. 1 is a top view of a closure strip showing my new design;

FIG. 2 is a bottom view of the closure strip showing my new design;

FIG. 3 is a side view of the closure strip showing my new design;

FIG. 4 is an isometric view of the closure strip showing my new design;

FIG. 5 is an enlarged fragmentary isometric view of the end of the closure strip within the circle A in FIG. 4; and,

FIG. 6 is an enlarged fragmentary isometric view of the end of the closure strip within the circle B in FIG. 4. 

The ornamental design for a closure strip, as shown. 